Power windows comfort opening, function - GF72.29-P-3004T

MODEL 211.0/2/6

Fig 1: Power Windows Comfort Opening Communication Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function requirements

Valid ident code
Circuit 15C, circuit 15R and circuit 15 OFF
No overvoltage or undervoltage
All doors closed (status: unlocked)
No other control unit sends central opening message
"Unlock" button on transmitter key (A8/1) pressed and held down for longer than 1 s.

Function

By actuating the unlock button on the transmitter key (A8/1) the actuation request is received by the left front IR receiver (A26/1) and is transmitted to the left front door control unit (N69/1). It then actuates the left front power window motor (M10/3) in the "opening" direction and simultaneously relays the opening request to the left front door control unit (N69/2), left rear door control unit (N69/3) and right rear door control unit (N69/4).

The corresponding door control units then actuate the

Right front power window motor (M10/4)
Left rear power window motor (M10/5)
Right rear power window motor (M10/6)

in the "opening" direction. The power window motors are actuated as long as the button on the transmitter key (A8/1) is pressed, however, max. 25 s. The power window comfort opening function is not performed with when the windows are not normalized.

The convenience opening function is aborted if

the request is no longer received via interior CAN.
the so-called function requirements are no longer fulfilled.

On model 211.6 the number of power window motors and door control units in the rear can vary depending on the equipment and special body.

Power windows comfort closing, function		GF72.29-P-3005T
Power windows convenience opening via air recirculation mode button, function	Vehicles up to model year 08/YoM 07 Vehicles as of model year 09/YoM 08 except code (494) USA version and except code (460) Canada version	GF72.29-P-3010T
Convenience closing of power windows via air recirculation mode button, function	Vehicles up to model year 08/YoM 07 Vehicles as of model year 09/YoM 08 except code (494) USA version and except code (460) Canada version	GF72.29-P-3011T
Synchronization of power windows, function		GF72.29-P-4003T
Driver front door control unit, location/task		GF72.29-P-4115T
Passenger-side front door control unit, location/task		GF72.29-P-4116T
Door control unit rear, location/task/function		GF72.29-P-4117T
Transmitter key, task/design/function		GF80.57-P-4101T